Auto generate the ID in sql server 2005.

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Hai all,

I want to generate the Product ID when i insert the product in the table.it will be start after 990. i want to maintain the ID in a specific column. Note: I am not mention the Row auto generate ID.

For Example,
ID    Product    ProductID
1     Choclate      990
2     Book           991

The Table is look like this any help...

Posted 25-May-12 19:27pm

Sam Path

Updated 25-May-12 19:32pm

v3

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OriginalGriff · Answer 1 · 2012-05-25T19:34:00

Solution 1

SQL

INSERT INTO myTable (Product, ProductID) VALUES ('Book', (SELECT MAX(ProductId) +1 FROM myTable))

It would be better to create a stored procedure that sets the start value if no records exist, and returns the Product ID.

Posted 25-May-12 19:34pm

OriginalGriff

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Sam Path 26-May-12 2:18am

Sir,
I used this query but I got this Error.

Subqueries are not allowed in this context. Only scalar expressions are allowed.

John Bhatt · Answer 2 · 2012-05-25T20:48:00

Why don't you change the Structure of your Table as below:

SQL

create TABLE ProductTable
(
ProductID int primary key identity (990,1), --This will automatically Increment your value of ProductID starting from 990. Also Promary Key.
ProductName varchar(100), -- Name of Product stored as Varchar
);